RustRusotoRocket_DynamoGetItem

dynamo.rs

extern crate rusoto_dynamodb;
use rusoto_dynamodb::*;

async fn dynamo_get_user(client: &DynamoDbClient, table_name: String, id: String) -> Result<User, &'static str> {
    let mut get_key = HashMap::new();
    get_key.insert(
        "id".to_string(),
        AttributeValue {
            s: Some(id.to_string()),
            ..Default::default()
        },
    );
    let input = GetItemInput{
        table_name: table_name,
        key: get_key,
        ..Default::default()
    };

    match client.get_item(input).await {
        Err(error) => {
            println!("Error: {:?}", error);
            Err("error calling dynamo")
        },
        Ok(output) => {
            let item = match output.item {
                None => {
                    println!("no item present");
                    return Err("error, no item present")
                },
                Some(i) => i
            };

            Ok(User::from_map(item).unwrap())
        }
    }
}